Boiler-flue cleaner.



R. W. HAMANN.

BOILER PLUE GLEANER.

APPLIOATION FILED LIA-R. 15, 1908.

' Patented Nov. 17, 1908.

2 SHEETS-SHEET 1.

R. W. HAMANN.

BOILER PLUE CLEANER APPLICATION FILED MAR. 16, 1908.

903 ,971 Patented Nov. 17, 1908.

2 SHEETS-SHEET 2.

ATTESI ZWLWTOR.

5 v RCHHRD MHAMANN.

UNITED STATES PATENT OFFICE.

RICHARD W. HAMANN, OF ST. LOUIS, MISSOURI, ASSIGNOR TO EUGENE J. FEINER, OF ST. LOUIS, MISSOURI.

BOILER-FLUE CLEANER.

Specification of Letters Patent.

Patented Nov. 17, 1908.

To all whom it may concern:

Be it known that I, RICHARD W. HAMANN, a citizen of the United States, and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Boiler-Flue Cleaners, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to a boiler flue cleaner, my object being to construct a simple apparatus, which is located to the rear of a flue boiler, or in the side wall of a water tube boiler, and which apparatus is utilized to throw jets of steam or compressed air into and through the boiler flues, or between the water tubes to remove all soot and like foreign matter which may accumulate in said fines or upon the tubes; and my present invention is an improvement on a similar clevice shown and described in a patent application filed by me July 13, 1907, Serial No. 383,655.

In the construction shown in the application above referred to, the discharge nozzle and the forward ends of the steam or compressed air pipes are practically unprotected from the heat and flames passing into and through the boiler tubes; and to overcome this objection, I have provided the housing with a heat and flame shield, which, when the apparatus is not in use, entirely closes the forward end of the housing, thereby protecting the discharge nozzles from the heat and flames.

A further object of my invention is to so construct the openings in the discharge nozzles as that the jets of steam or compressed air issuing from said openings will be united after traveling a short distance from said nozzles, and the full force of said jets is thus delivered in straight lines through the boiler fines, or between the water tubes.

To the above purposes, my invention consists in certain novel features of construction and arrangement of parts, which will be hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanying drawings, in which igure 1 is a vertical section taken through the rear portion of a boiler and its setting, and showing my improved apparatus located in the rear wall in position for use; Fig. 2 is an enlarged horizontal section taken approximately on the line 22 of Fig.1; Fig. 3 is an enlarged vertical section taken through the center of the apparatus; Fig. 1 is a horizontal section taken through one of the nozzles; Fig. 5 is a detail view of a connection between the jet pipes and the plate lifting member of my improved apparatus.

Referring by numerals to the accompanying drawings :-l designates the boiler, 2 the fines therein, and 3 the rear wall of the boiler setting.

4: designates a housing, preferably constructed of metal, in mating halves, and with a wide open mouth, which is arranged immediately opposite that portion of the boiler in which the boiler fines are located; and said housing, in the present instance, is shown as being located in the rear wall 3 of the boiler setting, although a portion of said housing may be located inside or outside of said wall. Where the apparatus is used in connection with a water tube boiler, the housing is located in either of the side walls of the boiler setting in such position as that the jets of steam or compressed air may be .directed onto and between the water tubes.

Formed in the rear portion of the housing 4; are the horizontally arranged bearings 5, in which is arranged for rotation a tube ("3; and seated therein, within the housing 1, is a series of jet tubes 7, which extend forward through the housing 4; and fixed on the forward ends of said jet tubes are nozzles 8, and each nozzle being provided with a plurality of discharge openings 9, the outer ones of which are formed on diverging lines, in order that the jets of steam or ing through said openings will spread or diverge laterally.

A pair of transversely disposed plates 10 are arranged immediately above and below the jet pipes 7, adjacent the nozzles 8, and which plates are rigidly held together and to the jet pipes by bolts or rivets, 11.

J ournaled in the side walls of the housing 4, immediately adjacent the top thereof, and at points in approximate vertical alinement with the ends of the plates 10, are trunnions 12, formed integral with the upper corners of a plate 13, the lower edge of which normally rests on the bottom of the housing 1, immediately in front of the nozzles S; and thus said plate entirely closes off the rear portion of the housing 1 and the jet pipes and nozzles located therein.

Pivotally connected to an ear 14., formed integral with the bottom of the housing, is a vertically disposed plate 15, the top of which carries a pair of anti-friction rollers 16; and formed in the lower portion of said plate is a slot 17.

18 designates a shackle or clevis, which is held between the plates 10 by a pin or bolt 19; and arranged between the upper ends of said shackle is a roller 20, which passes through and operates in the slot 17.

The outer end of the pipe (3 is arranged for rotation in a. housing 21 located on the end of a pipe 22, which leads from a suitable source of steam or compressed air supply, and fixed on the pipe 6 is an operating handle 23.

When an apparatus of my improved construction is installed and it is desired to clean the boiler lines, the steam or compressed air is allowed to discharge through the pipe 22', and from thence said steam or air passes through the pipe 6 into and through the jet tube 7 and discharges from the apertures 9 formed in the nozzles S on the forward ends thereof. The operator now engages the handle 23 and moves the same downward, thus rocking the pipe 6 and cor respondingly elevating the forward. ends of the jet tubes 7. As the movement of the elevation of the forward ends of said tube starts, the plate 15 is swung upward and forward by reason of the connection between the plates 10 and said plate 15, which connection includes the shackle 18 and roller 20; and as the plate 15 is thus moved forward and upward, the protecting plate 13 is swung upward and outward, thus moving away from in front of the nozzles 8 and permitting the jets of steam or compressed air to discharge from said nozzles into and through the flues, or against and between the water tubes, as the case may be.

Then the handle 23 is manipulated to I lower the jet tubes, the plate 15 and protecting plate 13 lower by gravity; and, when the apparatus is not in use, the protecting plate 13 moves downward until its lower edge engages on the bottom of the housing 4:, and thus the jet tubes and nozzles are thoroughly protected against the action of the heat and flames passing to the rear of the boiler, and through the fines thereof.

The outer pair of openings 9 in each of the nozzles 8 throw the jets of steam or compressed air in diverging lines, and, as a resuit, the jets of steam or air from an adj acent pair of the nozzles will come together a short distance away from the nozzles; and from the meeting point the steam or air is projected forward in a straight line directly into the rear ends of all of the boiler fines, and thus the approximate full force of the jets of steam or air is delivered to and through the boiler tubes, and all of the soot and like foreign matter is forcibly blown through said tubes into the forward end of the boiler, from whence it passes into the stack.

An apparatus of my improved construc' ,tion is easily installed and operated, and

when the apparatus is not in use, the nozzles and jet tubes are thoroughly protected from heat and flame from the fire under the boiler.

I claim 1. The combination with a boiler, of a fluid pressure supply pipe arranged adjacent the open ends of the tines in the boiler, a series of jet tubes leading from said pipe toward the boiler fines, and a movable protecting plate normally disposed in front of the jet tubes.

2. The combination with a boiler, of a series of movable jet tubes arranged adjacent the boiler and projecting toward the boiler flues, and a movable projecting plate arranged immediately in front of the jet tubes.

3. The combination with a boiler, of a series of movable jet tubes arranged adjacent the boiler and projecting toward the boiler flues, a movable protecting plate arranged immediately in front of the jet tubes, and means whereby the jet tubes and protecting plate are simultaneously actuated.

4:. The combination with a boiler, of a fluid pressure supply pipe arranged adjacent the open ends of the fines in the boiler, a series of jet tubes leading from said pipe toward the boiler flues, a movable protecting plate normally disposed in front of the jet tubes, and means for simultaneously rocking the fluid pressure supply pipe and elevating the protecting plate.

The combination with a boiler, of a series of et tubes arranged adjacent the boiler and projecting toward the boiler flues, and a movable protecting plate arranged between the forward ends of the jet tubes and the boiler.

6. The combination with a boiler, of a series of jet tubes arranged adjacent the boiler and projecting toward the boiler fines, perforated nozzles located on the forward ends of said jet tubes, and a movable protecting plate arranged between the forward. ends of the jet tubes and the boiler.

7 The combination with a boiler and its setting, of a housing arranged in the boiler setting, a fluid pressure supply pipe arranged to rock in the housing, jet tubes carried by the pipe within the housing, and a protecting plate arranged in the housing in front of the jet tubes.

8. The combination with a boiler and its setting, of a housing arranged in the boiler setting, a fluid pressure supply pipe arranged to rock in the housing, jet tubes carried by the pipe within the housing, a pro- .tecting plate arranged in the housing in front of the et tubes, and means for simultaneously rocking the fluid pressure supply pipe and actuating the protecting plate.

9. The combination with a boiler, of a series of movable jet tubes arranged adjacent the boiler and projecting toward the boiler fiues, nozzles located on said jet tubes, there being diverging openings formed in said nozzles, and a movable protecting plate arranged between the nozzles and the boiler.

10. The combination with a boiler, of a series of movable jet tubes arranged adjacent the boiler and projecting toward the boiler flues, nozzles on the ends of said jet tubes, a

series of horizontally disposed jet openings 5,

In testimony whereof I have signed my 0 name to this specification, in presence of two subscribing witnesses.

RICHARD W. HAMANN. Witnesses:

M. P. SMITH, E. L. WALLACE. 

